Image modification online

Creating images with multiple levels of transparency, translucency.
Using the alpha channel, 256 levels of transparency are possible, ranging from 0% of transparency (opaque), ..., 10%, 20%, ..., 50% of transparency, up to 100% of transparency.

This video is a teaser and it also describes how to create partial transparent, translucent images with the online tool below.

Structure of this website

This website is structured in the following way:

The advantages of partial transparent or translucent images

Input of the online tool

Example of input and output

Processing time

Constraints of the online tool

The online tool:procedure and output

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Your feedback

The advantages
of partial transparent or
translucent images

Among other things images with partial transparency or translucency overcome some limitations of images with only one transparent color possible, like .gif format (graphics interchange format).
The designer is able:

To create soft edges, which blend into their background, similar to the effect of anti-aliasing.

To create transparent areas,

which look like colored glass and

which are transparent, not only to one color, but also to all other colors of the background.

...

Feel free, to change the background color with the interactive color picker below and watch the effect on the semi-transparent image to the left of it.

Input

Two images are necessary with the same width and height, measured in pixels.
Both images do NOT need any alpha channel (layer with transparency information).
A maximum color depth of 24 bit is fine.

The first image defines the colors.

The second image is the transparency mask or transparency map.
It is a modification of the 1st image and defines the levels of transparency of the 1st image, in 256 levels of grayscale, ranging from opaque to fully transparent.
For example:

a pixel in white (rgb value of 255) in the 2nd image defines fully transparency of the pixel at the same position in the 1st image,

a pixel in black (rgb value of 0) defines opaque and a

a gray pixel with a value of rgb = 178 is similar to 70% of transparency.

alpha channels (transparency information) of the 2 input images are not considered

the maximum processing time, until the merged image is ready for download, is limited to 120 seconds by the server.

The online tool:procedure and output

After both images are uploaded, they will be merged into each other.
The resulting image for download is a 32 bit .png (portable network graphics) file with an alpha channel, defining the transparency, translucency.

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support this website

Do you enjoy the content of this website, was the online tool helpful for you and do you wish to see more?

Then feel free, to support us with a donation through PayPal™.

Thank you & best regards !
Your image processing team at where2link.com

Your feedback

Feel free, to send us your comments or feedback. Are there any image modifications, which you would like to see as an online service? Let us know, please.

Please do not forget, to add your email address, in case we should contact you.Thank you.

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Modifications:
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